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5 - Gas Exchange across the Placenta

from Section 2 - The Basics: for the Non-Obstetrician

Published online by Cambridge University Press:  14 April 2020

By
Brahmdeep S. Saini ,
Janna L. Morrison  and
Mike Seed
Edited by
Stephen E. Lapinsky  and
Lauren A. Plante
Stephen E. Lapinsky
Affiliation:
Mount Sinai Hospital, Toronto
Lauren A. Plante
Affiliation:
Drexel University Hospital, Philadelphia
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Summary

The placenta develops alongside the embryo and fetus and is responsible for fetal gas exchange and nutrition. The placenta also has important immune and endocrine functions and thus undertakes to fulfill the roles played by various somatic organs in the post-natal situation (Figure 5.1). The placental membrane, the chorion, prevents the fetal and maternal blood from mixing, while allowing transport of molecules. The human placenta is haemochorial, which means that maternal blood contacts the chorionic placental membrane (fetal epitheliem).

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Information
Respiratory Disease in Pregnancy , pp. 34 - 56
Publisher: Cambridge University Press
Print publication year: 2020

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